New (to me) lighting relays

[Eagle]

Amazon sent me a link to an automotive lighting relay of a type I've never seen before. Just wondering if anyone knows anything about this type of relay.

 

https://www.amazon.com/gp/product/B01N1IEWCU?ref=em_1p_2_ti&ref_=pe_3743270_373016350

 

I think I like the fact that the power terminals are studs and nuts rather than slip-ons ... but I'm accustomed to working with relays that allow them to be wired for normally open or normally closed. This only works as normally open (which is generally what's needed for auxiliary lights). What do you say, gentlemen?

[MJCARENA]

Do you really need a 120 amp relay. I do also like the studs. I use Bosch 12v 40 amp relays myself. What ever you use, just stay away from the China ones.  I had a Bosch style 40 amp relay from China, I opened it up to see the quality of it, and it had a 5 amp relay mounted on a board inside it.

[Eagle]

I snatch all the OEM relays I can get from XJs in scrap yards. I have a box of them on a shelf in the basement.

 

As for the 120-amp rating -- it's on Amazon, so it's almost certainly Chinese. So their 120-amp is probably really more like 12-amp.

 

[AZJeff]

The type of relay you are normally used to seeing (with the four spade terminals) is called a "Bosch-type" and are commonly found in automotive applications.  The biggest Bosch type relays I have ever seen are rated for about 40A.

 

Once you need more than that much current, you wind up going into other types of terminals on the relay.  Since these are claimed to be rated at 120 (which seems dubiously high), a screw terminal for a ring-tongue lug is needed, since the normal small spade lugs cannot carry that type of current.